Sewing-machine.



L. ONDERDGNK.

SEWING MACHINE.

APPLIOATION FILED sEPT.1o, 1907.

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SEWING MACHINE.

APPIJOATION FILED SBPT.10, 1907.

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APPLICATION FILED SEPT. 10. 1907.

Patented Jan. 12, 1915.

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L. ONDERDONK.

SEWING MACHINE.

APPLICATION rILD`sB1 T.1o,19o7.

1,124,322, Patented Jan.12, 1915.

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' l [Nl/ENTOR Attorneys n UNITED sTATEs PATENT OFFICE.

LANSING ONDERDONK, OF NEW YORK, N. Y., ASSIGNOR TO UNION SPEGIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

Specification of Letters Patent.

Patented Jan. 12, 1915.

Application med September 10, 1907. Serial No. 892,204.

To all whom it may concern Be it known that I, LANSING ONDERDONK, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Sewing-Machines, of which the following vis a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon.

My invention relates to new and useful improvements in sewing machines and has for its object to provide a machine with. a work supporting post on which the material is supported while it is being stitched, and which work supporting post is capable of being made larger or smaller according to the character of the work on which it is desired to operate.

A further object of my invention is to pr0- vide a sewing machine of the above character with a work feeding mechanism and a looper operating mechanism, which shall be positive in its movement and compactly arranged in a work supporting post.

A still further object of my invention is to provide a sewing machine of the above character with a thread controller which is readily accessible to the operator and with proper thread guides for guiding and protecting the thread as it passes from the thread controller to the looper operating mechanism.

Still further objects of my invention will in part be apparent and will in part be more fully hereinafter set forth.

My invention consists in the parts. irnprovements and arrangements, hereinafter shown, described and set forth in the claims.

In the drawings which show by way of illustration one embodiment of my invention, Figure 1 is a front plan view partly in section, of a sewing machine with my improvements applied thereto. Fig. 2 is an end elevation, partly in section, of the same. Fig. 3 is a top plan view of a portion of the bed plate and the work supporting post, together with the guides for the looper thread. Fig. 4 is a detail sectional view showing the work supporting post in side elevation. Fig. 5 is a top plan view of the work supporting post with the throat plate and covers for the operating mechanism, removed. Fig. 6 is a sectional view on the vline b-b of Fig. 5. Flg. 7 1s a sectional view of one of the covers shown in Fig. 4. Fig. 8 is a sectional View of a different form of cover which may be used on the work supporting post. Fig. 9 1s a detail view showing the yoke for supportlng the feed dog and its relation to the loopers when in threading position.

The bed plate 1 has 4rising therefrom a standard 2, carrying an overhanging arm 3.

which supports a needle head 4 at its forward end.

The main shaft 5 is supported in suitable bearlngs in the overhanglng arm and recelves its rotation from the ordinary belt wheel 6.

The needle bar 7 reciprocates in the needle head 4, and carries a plurality of needles 8 at the lower end thereof. It is obvious, however, that a single needle may be used instead of a plurality of needles herein illustrated. The needle b'ar 7, receives its reclprocation from the main shaft 5, through a link 9, which is attached to a crank disk on the end of the main shaft 5, at one end and to a collar carried by the needle bar at the other end.

The needle thread controller 10, consists of oppositely extending arms, carrying thread guides 11 and 12. Said needle thread controller is mounted on an arm 13, which is rigidly secured to the link 9, which operates the needle bar. The needle lar carries at its upper end a thread guide 14, and at its lower end a series of thread guides l5, one being formed for each needle. The needle thread is led from the guide 14 through the guides 11 and l1 on the thread controller 10, and then through the guide 12 to one of the guides 15, through which the thread passes to the respective needles. This thread controller is shown, described and claimed in my co-pending application, Serial No. 392.205 filed of even date herewith.

The presser bar 16 is mounted in the needle head 4, and carries a presser foot 17 at the lower end thereof. Said presser bar is lifted by the usual hand lever 18.

A thread controller 19 is pivoted by means of an arm 2O to a post mounted on the needle head and is connected at its rear end by means of a link 21 to a collar 22, mounted on the presser bar 16. This thread controller 19 has a thread eye or guide 23 at its forward end and the thread as it passes from the supply is led through said eye or guide to the thread guide 14 on the needle bar. It will be obvious that as the presser bar is raised or lowered by varying thicknesses of fabric, that the thread eye or guide 23 will be correspondingly raised or lowered, and the amount of thread pulled off by the needle bar, will be correspondingly varied.

The bed plate 1 has rising therefrom at its forward end, a Work supporting post 24. The shaft 25 is mounted in suitable bearings in the bed plate 1, and receives a continuous rotation from a belt shown in dotted llnes in Fig. 1. It is obvious however, that said shaft may be rotated continuously by any other suitable means.

The feed bar 26 carries a feed dog 27 at its upper end and said feed bar is pivoted at its lower end to a yoke 28 which in turn is pivoted to the bed plate 1 and receives its vibrations from an eccentric 29 secured to the main shaft. The feed bar is moved laterally to feed the work by means of a lever 30 which encircles an eccentric 31 at its lower end and is secured to the feed bar by means of a link 32, at its upper end. The lever 30 is pivoted intermediate its ends to a link 33 which in turn is pivoted to a rock lever 34 pivotally supported on the Work supporting post. The rock lever 34 is connected to a regulating arm 35 by means of a link 36.

The feed bar 26 is formed with a yoke at the upper end on which the feed dog is mounted. This feeding mechanism is shown, described and claimed in my copending application, Serial No. 392,209 filed of even date herewith.

The looper 37 is mounted upon a looper carrier 38, which is secured to a looper supporting rod 39, 'mounted in the bearings 40 and 4l formed in the work support 24. The looper carrier is pivoted to a link 42, which link is swiveled'to a bracket 43, mounted upon the work supporting post. As the looper carrier is vibrated, the link 42 will cause said carrier together with the looper supporting rod 29, to slide endwise in its supporting bearings.

The looper carrier receives its oscillation from a link 44, which is pivoted at one end to a ball stud carried by the looper carrier, and at the other end by a ball stud carried by a rock lever 45, pivoted at 46 to the work supporting post.

The rock lever 45 is connected by means of a link 47 to a crank 48 mounted on the end of the shaft 25. As the shaft 25 rotates, the rock lever 45 will be oscillated and the carrier through the link 44, vibrated back and forth. |The carrier as it vibrates as above noted, will be moved laterally. This movement of the looper carrier causes the looper after entering the needle loop to move laterally across the path of the needle to carry the looper thread to such a position that the needle in its descent will with certainty pass between the looper thread and the body of the looper. The loopers will return to their extreme backward position over the same path by which they are moved forward. This looper mechanism is shown, described and claimed in my co-pending application, Serial No. 392,207 filed of even date herewith.

1 have provided the bed plate 1 at a point adjacent the standard 2, with an opening which is closed by a suitable hinged cover plate 49. rlhe looper thread controller 50 is located beneath the bed plate at a point underneath the hinged cover 49. The looper threads after passing through the looper thread controller 50, is led underneath a thread guiding plate 51, which is secured to the bed plate by suitable screws 52. Said thread guiding plate as shown in Fig. 4, is provided with a projecting lip 53, underneath which the thread passes. Said thread guiding plate 51 `extends from a position adjacent the cover plate 49 to the base of the work supporting post 24 (see Fig. 3). The forward end of the thread guiding plate 51 is cut away as at 54 to provide a convenient means for introducing the thread beneath said thread guiding plate.

A thread guiding plate 55 extends up the side of the work supporting post (see Figs. 3 and 4). Said thread guiding plate is secured to the Work supporting post by suitable screws 56. This thread guiding plate 55 is provided with a projecting lip 57 underneath which the thread passes.

The projecting lip 57 of the thread guiding plate extends in an opposite direction from the projecting lip 53, of the thread guiding plate 51. The thread guiding plate 55 is formed with a finger 58 which extends over the edge of the work supporting post into the same and serves as a guiding finger for the looper threads.

The work supporting post is provided at its upper end with a throat plate 59, which is provided with suitable feed slots 60 which receive the feed dog 27. The work supporting post at its upper end is cut away as shown in Figs. 4, 5 and 7 In order to cover the looper and feeding mechanisms I have provided my work supporting post with cover plates 61 and 61. The cover plate 61 (see Fig. 7) is hinged to the work support by a suitable pintle 62. This cover plate 61 extends underneath the throat plate 59 (see Fig. 7) and is secured in its closed position by a leaf spring 63,

which is bent at its forward end to engage a shoulder formed on a lug 64, carried by the hmm;

cover plate 61. The cover plate 61 is held in closed position by a similar leaf spring or latch.

For a certain character of work, it is desired to have a larger work supporting surface thanvthat shown in Figs. 4 and 7 of the drawin and I have therefore, provided a cover p ate which may be substituted for the cover plate 61 or 61. This last named cover plate, consists-of a curved portion 65 (see Fig. 8), which fits in the cut out portion of the work supporting post. Said cover plate 65 is provided with a work supporting section 66 at its upper end. The cover plate 65 is hinged to the work supporting post by\a pintle 67. v i,

The cover plate 65 is held in closed? position by a spring 68 which is secured to said cover plate 65 and is provided at its forward end with a projecting lip 69 engaging a notch 70 in the underside of the throat plate 59. When it is desired to change one cover plate for the other, the pintle 62 is removed and the desired cover plate placed in position when the pintle which secures the same to the work supporting post, is replaced.

It will be noted that by the form of construction shown in either Figs. 7 or 8, that the cover plate may be swung back so that access may be had to the looper or the feeding mechanism when desired. With a cover plate of the form shown in Fig. 8, a work supporting post is formed which is circular in cross section and has a circular work supporting surface at its upper end. When however, it is desired to stitch smaller articles than can be placed over the post of the above form, the cover plate shown in Fig. 7 may be substituted for the cover plate shown in Fig. 8.

As above noted, the feed bar 26 is provided with a yoke in its upper end and said feed bar is so located relative to the looper mechanism, moves back into the yoke formed at the upper end of the feed bar.

hen it is desired to thread the looper, the latch 37 is turned so that the looper carrier together with the looper may be y swung about. the looper support and the yoke shaped feed bar allows the looper to swing backward and also allows ready access to the looper for threading.

Having thus particularly described my invention, what I claim as new and desire to secure by Letters Patent is 1. A sewing machine including in combination a vertical work supporting post, a looper mounted in said post, a rotary shaft extending into the plane of said work supporting post, means mounted in said post and connected to said shaft for oscillating said looper, a feeding mechanism mounted that the looper as it oscillates,

2. A sewing machine including in com lbinatiion a vertical work supporting post,

a louperk mounted in said post, a rotary shaft extending into the plane of said work supporting post, means mounted in said post and connected to said shaft for oscillatf ing said looper, a feeding mechanism, mounted in said post, said feeding mechanism including a feed bar, a yoke carried by said feed bar for permitting the free oscillation of the looper, an eccentric on said shaft for raising and lowering said feed bar, a lever pivoted to said work supporting post and connected to said feed bar and an eccentric for vibrating said lever.

3. A sewing machine including in combination a vertical work supporting post, a feed bar mounted in said work supporting post, a rotary shaft extending into the plane of said work supporting post, and located at the base thereof, means connected to said shaft for operating said feed bar, a looper support mounted in the upper end of said work supporting post, a looper carried by said support and means for oscillating said looper support, comprising a rock lever independent of said looper support, said rock lever being pivoted to the work supporting post, means for connecting the rock lever to the looper, and independent means for connecting the rock lever to the shaft, whereby the looper is operated.

4. A sewing machine including in combination a vertical work supporting post, a feed bar mounted in said work supporting post, a rotating shaft extending into the plane of said work supporting post at the base thereof, means connected to said shaft for operating said feed bar, a looper slipport mounted in the upper end of said work supporting post a looper carried by said support and means for oscillating said looped support, comprising a rock lever independent of the looper support, said rock lever being pivoted to said Work supporting post, means for connecting said rock lever to said shaft and means for connecting said rock lever to said looper, and independent means for moving said looper laterally.

5. A sewing machine including in combination a work supporting post, a feeding mechanism mounted in said work supporting post, including a feed bar having a yoke-shaped upper end on which is supported a feed dog, means for vibrating said feed bar, a looper mounted in said work supporting post, and vibrating into the yokeshaped upper end of the feed bar, a lever pivoted to said work supporting post, a link connecting said rock lever to said looper, and means for oscillating said rock lever.

6. A sewing machine including in combination a work supporting post, a feeding mechanism mounted in said work support- Aing post, including a feed bar having a yoke-sha ed upper end on which is supported a fee dog, means for vibrating said feed bar, a looper mounted in said work supporting post andvibrating into the yoke-shaped upper end of the feed bar, a rock lever pivoted to said work supporting post, a link connecting said rock lever to said looper, means for oscillating said rock lever, and means for moving said looper laterally.

7. A sewing machine including in combination a worksupporting post, feeding mechanism mounted in said work supporting post including a feed bar having a yoke-shaped upper end, a feed dog mounted on said feed bar, means for operating said feed bar and a looper carrier, a looper mounted thereon, a rock lever pivoted to said work supporting post, a link connecting said looper carrier to said rock lever, an arm pivoted to said carrier and to the work supporting post, and means for oscillating said rock lever. 0

8. A sewl machine having m combination a bedupirte, a, work supporting post rising therefrom, a thread guiding and protectin strip secured to said bed plate and exten ing to a peint. sdiacent the base of said Work supporting' post, a second thread guiding and protecting strip secured to sald work supporting post.

9. A sewing machine having in combination 'a bed plate, a work supporting post rising therefrom, a thread guiding and protecting strip secured to said bed plate, and"r extending to a point adjacent the base of said work supporting post, a second thread guiding and protecting strip secured to said work supporting post, and a finger carried by the upper end of said last named thread guiding strip.

10. A sewing machine having in combination a bed plate, a work supporting postl rising therefrom, a thread guiding strip secured to said bed plate and having a projecting lip underneath which the thread is guided, a thread guiding strip secured to said work supporting post and having a guiding lip projecting in the opposite direction from the lip on the thread guiding strip, secured to the bed plate.

11. A sewing machine having in combination a bed plate, a work supporting post rising therefrom, a thread guiding strip secured to said bed plate, and having a projecting lip underneath which the thread is guided, a thread guiding strip secured to said work Supporting post and having a guiding lip projecting 1n the op osite direction from the lip on the thread guiding strip secured to the bed plate, the upper end of the thread guiding strip secured to the work support having a thread guiding r extendmg at an angle to said strip.

12. A sewing machine including in combination a bed plate, an over-hanging arm, a work supporting post, `a looper mechanism mounted 1n said work supporting post, a thread controller mounted underneath the bed plate at a'point adjacent the overhanging arm, said bed plate having a hinged portion ad]acent the overhanging arm,

whereby access to the thread controller may be had, a thread guiding strip extending from said hinged portion to said work supporting post, a thread guiding strip extending up the side of said work supporting post whereby the thread may be led from said thread controller underneath said thread guiding strips to the looper mechanism.

13. A work supporting ost having interchangeable sections where y said work supporting post may be made larger or smaller and different sized articles operated upon.

14. A work supporting post, having interchangeable hinged sections whereby said work supporting post may be made larger or smaller and different sized articles may be operated upon.

15. A work supporting post, a throat plate mounted thereon, a hinged cover secured to each side of said work supporting post, and means for holding said covers in closed osition.

16. work supporting post, a throat plate mounted thereon, a hinged cover secured to each side of said work-supporting post, a spring latch for each cover for holdlng the same in closed position.

17. A tubular work supporting post having the upper end thereof cut away on opposite sides, a throat plate mounted at the upper end of said work supporting post, and hinged covers for closing said cut away portions.

18. A tubular work supporting post having the upper end thereof cut away on opposite sides, a throat plate mounted at the upper end of said work supporting post, interchangeable covers for fitting and closing said cut away portion.

19. A tubular work supporting post having the upper end thereof cut away, a throat plate mounted on the upper end of said work supporting post, a hinged cover litting and closing said cut away portion, said hinged cover carrying a section of the work support whereby when said covered portion is in place, the work supporting surface of said post is increased.

20. A tubular work supporting post having the upper end thereof cut-away, a throat plate mounted on the upper end of said" work supporting post, a hinged cover fitting and closing said cut away portion, said hinged cover carrying a section ofthe work support, whereby when said cover portion is in place, the work supporting surface of said post is increased, and means for holdfing said cover portion in closed posltlon.

In testimony whereof I aHiX my slgnature, in presence of two witnesses.

LANSING ONDERDONK. Witnesses:

WALTER HARTLEY, FRANKLIN H. CHILTON. 

